diff --git a/lib/Frame.d.ts.map b/lib/Frame.d.ts.map
index bcc6563..14a68f6 100644
--- a/lib/Frame.d.ts.map
+++ b/lib/Frame.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"Frame.d.ts","sourceRoot":"","sources":["../src/Frame.tsx"],"names":[],"mappings":"AAGA,OAAO,EAAE,aAAa,EAAE,MAAM,SAAS,CAAC;AAQxC,MAAM,WAAW,kBAAkB;IACjC,MAAM,EAAE;QACN,CAAC,SAAS,EAAE,MAAM,GAAG,aAAa,EAAE,CAAA;KACrC,CAAA;IACD,aAAa,CAAC,EAAE;QACd,CAAC,KAAK,EAAE,MAAM,GAAG,OAAO,CAAA;KACzB,CAAA;IACD,KAAK,EAAE,IAAI,CAAA;IACX,KAAK,CAAC,EAAE,MAAM,CAAA;IACd,KAAK,CAAC,EAAE,MAAM,CAAA;IACd,SAAS,CAAC,EAAE,MAAM,EAAE,CAAA;IACpB,gBAAgB,CAAC,EAAE,OAAO,CAAA;IAC1B,UAAU,CAAC,EAAE;QACX,KAAK,CAAC,EAAE,MAAM,CAAA;QACd,WAAW,CAAC,EAAE,MAAM,CAAA;QACpB,IAAI,CAAC,EAAE,MAAM,CAAA;QACb,KAAK,CAAC,EAAE,MAAM,CAAA;KACf,CAAA;IACD,UAAU,CAAC,EAAE,MAAM,GAAG,MAAM,CAAA;CAC7B;AAED,wBAAgB,aAAa,CAAC,KAAK,EAAE,kBAAkB,eA6GtD"}
\ No newline at end of file
+{"version":3,"file":"Frame.d.ts","sourceRoot":"","sources":["../src/Frame.tsx"],"names":[],"mappings":"AAGA,OAAO,EAAE,aAAa,EAAE,MAAM,SAAS,CAAC;AAOxC,MAAM,WAAW,kBAAkB;IACjC,MAAM,EAAE;QACN,CAAC,SAAS,EAAE,MAAM,GAAG,aAAa,EAAE,CAAA;KACrC,CAAA;IACD,aAAa,CAAC,EAAE;QACd,CAAC,KAAK,EAAE,MAAM,GAAG,OAAO,CAAA;KACzB,CAAA;IACD,KAAK,EAAE,IAAI,CAAA;IACX,KAAK,CAAC,EAAE,MAAM,CAAA;IACd,KAAK,CAAC,EAAE,MAAM,CAAA;IACd,SAAS,CAAC,EAAE,MAAM,EAAE,CAAA;IACpB,gBAAgB,CAAC,EAAE,OAAO,CAAA;IAC1B,UAAU,CAAC,EAAE;QACX,KAAK,CAAC,EAAE,MAAM,CAAA;QACd,WAAW,CAAC,EAAE,MAAM,CAAA;QACpB,IAAI,CAAC,EAAE,MAAM,CAAA;QACb,KAAK,CAAC,EAAE,MAAM,CAAA;KACf,CAAA;IACD,UAAU,CAAC,EAAE,MAAM,GAAG,MAAM,CAAA;CAC7B;AAED,wBAAgB,aAAa,CAAC,KAAK,EAAE,kBAAkB,eA6GtD"}
\ No newline at end of file
diff --git a/lib/Frame.js b/lib/Frame.js
index 2c61b12..935ab27 100644
--- a/lib/Frame.js
+++ b/lib/Frame.js
@@ -2,7 +2,6 @@ import React from 'react';
 import cx from 'classnames';
 import { getDisplayTime, getEventDate } from './utils';
 import { useMemo } from 'react';
-const defaultStyles = require('./css/frame.module.css');
 const defaultDayLabels = ['MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT', 'SUN'];
 const defaultWeeks = 4;
 export function CalendarFrame(props) {
@@ -11,9 +10,9 @@ export function CalendarFrame(props) {
         days.indexOf(props.startIndex) :
         props.startIndex || 0;
     const styles = useMemo(() => {
-        let s = Object.assign({}, defaultStyles);
+        let s = {};
         for (let [k, v] of Object.entries(props.classNames || {})) {
-            s[k] += ' ' + v;
+            s[k] += k + ' ' + v;
         }
         return s;
     }, []);
diff --git a/lib/Frame.js.map b/lib/Frame.js.map
index a58ca18..d100108 100644
--- a/lib/Frame.js.map
+++ b/lib/Frame.js.map
@@ -1 +1 @@
-{"version":3,"file":"Frame.js","sourceRoot":"","sources":["../src/Frame.tsx"],"names":[],"mappings":"AAAA,OAAO,KAAK,MAAM,OAAO,CAAC;AAC1B,OAAO,EAAE,MAAM,YAAY,CAAC;AAG5B,OAAO,EAAE,cAAc,EAAE,YAAY,EAAE,MAAM,SAAS,CAAC;AACvD,OAAO,EAAE,OAAO,EAAE,MAAM,OAAO,CAAC;AAChC,MAAM,aAAa,GAAG,OAAO,CAAC,wBAAwB,CAAC,CAAC;AAExD,MAAM,gBAAgB,GAAG,CAAC,KAAK,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,CAAC,CAAC;AAC3E,MAAM,YAAY,GAAG,CAAC,CAAC;AAuBvB,MAAM,UAAU,aAAa,CAAC,KAAyB;IAErD,MAAM,IAAI,GAAG,KAAK,CAAC,SAAS,IAAI,gBAAgB,CAAC;IACjD,MAAM,UAAU,GAAG,OAAO,KAAK,CAAC,UAAU,KAAK,QAAQ,CAAC,CAAC;QACvD,IAAI,CAAC,OAAO,CAAC,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC;QAChC,KAAK,CAAC,UAAU,IAAI,CAAC,CAAC;IAExB,MAAM,MAAM,GAAG,OAAO,CAAC,GAAG,EAAE;QAC1B,IAAI,CAAC,GAAG,MAAM,CAAC,MAAM,CAAC,EAAE,EAAE,aAAa,CAAC,CAAC;QACzC,KAAK,IAAI,CAAC,CAAC,EAAE,CAAC,CAAC,IAAI,MAAM,CAAC,OAAO,CAAC,KAAK,CAAC,UAAU,IAAI,EAAE,CAAC,EAAE;YACzD,CAAC,CAAC,CAAC,CAAC,IAAI,GAAG,GAAG,CAAC,CAAC;SACjB;QACD,OAAO,CAAC,CAAC;IACX,CAAC,EAAE,EAAE,CAAC,CAAC;IAEP,MAAM,KAAK,GAAG,OAAO,CAAC,GAAG,EAAE;QACzB,IAAI,CAAC,GAAG,EAAY,CAAC;QACrB,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,KAAK,CAAC,KAAK,IAAI,YAAY,CAAC,EAAE,CAAC,EAAE,EAAE;YACtD,IAAI,IAAI,GAAG,IAAI,IAAI,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC;YACjC,IAAI,CAAC,OAAO,CAAC,IAAI,CAAC,OAAO,EAAE,GAAG,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;YAC/C,KAAK,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;SAClB;QACD,OAAO,CAAC,CAAC;IACX,CAAC,EAAE,CAAC,KAAK,CAAC,KAAK,EAAE,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC;IAC/B,MAAM,aAAa,GAAG,KAAK,CAAC,aAAa,IAAI,EAAE,CAAC;IAEhD,OAAO,CACL,+BAAO,SAAS,EAAE,MAAM,CAAC,KAAK;QAC5B;YACE,gCACG,CAAC,KAAK,CAAC,KAAK,EAAE,GAAG,IAAI,CAAC,CAAC,GAAG,CAAC,CAAC,GAAG,EAAE,CAAC,EAAE,EAAE;gBACrC,OAAO,4BAAI,KAAK,EAAC,QAAQ,EAAC,GAAG,EAAE,GAAG,EAAE,SAAS,EAAE,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,MAAM,CAAC,WAAW,IACvE,GAAG,CACD,CAAC;YACR,CAAC,CAAC,CACC,CACC;QACR,mCACG,KAAK,CAAC,GAAG,CAAC,CAAC,IAAI,EAAE,CAAC,EAAE,EAAE;YACrB,IAAI,IAAI,GAAG,EAAE,CAAC;YACd,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,EAAE,CAAC,EAAE,EAAE;gBAC1B,IAAI,IAAI,GAAG,IAAI,IAAI,CAAC,IAAI,IAAI,CAAC,IAAI,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,OAAO,EAAE,GAAG,CAAC,GAAG,UAAU,CAAC,CAAC,CAAC;gBAC7E,IAAI,SAAS,GAAG,YAAY,CAAC,IAAI,CAAC,CAAC;gBACnC,IAAI,KAAK,GAAG,YAAY,CAAC,IAAI,CAAC,GAAG,EAAE,CAAC,KAAK,SAAS,CAAC;gBACnD,IAAI,GAAG,GAAG,CACR,4BAAI,EAAE,EAAE,SAAS,CAAC,QAAQ,EAAE,EAAE,GAAG,EAAE,SAAS,CAAC,QAAQ,EAAE,EAAE,SAAS,EAAE,EAAE,CAAC,MAAM,CAAC,IAAI,EAAE;wBAClF,CAAC,MAAM,CAAC,KAAK,IAAI,EAAE,CAAC,EAAE,KAAK,CAAC,gBAAgB,KAAK,KAAK,IAAI,KAAK;qBAChE,CAAC;oBACA,iCACG,KAAK,CAAC,MAAM,CAAC,SAAS,CAAC,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC,KAAK,CAAC,MAAM,CAAC,SAAS,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,aAAa,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;wBACvG,KAAK,CAAC,MAAM,CAAC,SAAS,CAAC;6BACpB,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE;4BACb,IAAI,CAAC,CAAC,KAAK,CAAC,QAAQ,EAAE,KAAK,CAAC,CAAC,KAAK,CAAC,QAAQ,EAAE;gCAAE,OAAO,CAAC,CAAC,KAAK,CAAC,QAAQ,EAAE,GAAG,CAAC,CAAC,KAAK,CAAC,QAAQ,EAAE,CAAC;;gCACzF,OAAO,CAAC,CAAC,KAAK,CAAC,UAAU,EAAE,GAAG,CAAC,CAAC,KAAK,CAAC,UAAU,EAAE,CAAC;wBAC1D,CAAC,CAAC;6BACD,GAAG,CAAC,CAAC,KAAK,EAAE,CAAC,EAAE,EAAE;4BAChB,OAAO,CACL,6BAAK,SAAS,EAAE,MAAM,CAAC,KAAK,EAAE,GAAG,EAAE,CAAC,SAAS,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,KAAK,EAAE,aAAa,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;oCACpG,OAAO,EAAE,MAAM;iCAChB;gCACC,6BAAK,SAAS,EAAE,MAAM,CAAC,WAAW;oCAChC,4BAAI,SAAS,EAAE,MAAM,CAAC,SAAS;wCAC7B,8BAAM,SAAS,EAAE,MAAM,CAAC,MAAM,EAAE,KAAK,EAAE;gDACrC,KAAK,EAAE,KAAK,CAAC,KAAK;6CACnB,aAAU;wCACX,8BAAM,SAAS,EAAC,SAAS,GAAoB;wCAC5C,KAAK,CAAC,aAAa,CAAC,CAAC;4CACpB,2BAAG,SAAS,EAAE,MAAM,CAAC,UAAU,EAAE,IAAI,EAAE,KAAK,CAAC,aAAa,IACvD,KAAK,CAAC,KAAK,CACV,CAAC,CAAC;4CACN,KAAK,CAAC,KAAK,CAEV,CACD;gCACL;oCACC;wCACG,cAAc,CAAC,KAAK,CAAC,KAAK,CAAC;wCAC3B,GAAG;wCACH,KAAK,CAAC,GAAG,CAAC,CAAC;4CACV,2BAAG,IAAI,EAAE,KAAK,CAAC,GAAG,EAAE,GAAG,EAAC,qBAAqB,EAAC,MAAM,EAAC,QAAQ,IAC1D,KAAK,CAAC,QAAQ,CACb;4CACJ,CAAC,CAAC,KAAK,CAAC,QAAQ;wCACjB,IAAI;wCACJ,KAAK,CAAC,WAAW,IAAI,IAAI,CACvB,CACD,CACF,CACP,CAAC;wBACJ,CAAC,CAAC,CAAC,CAAC;wBACN,6BAAK,SAAS,EAAE,MAAM,CAAC,UAAU,IAC9B,IAAI,CAAC,OAAO,EAAE,CACX,CACJ,CACH,CACN,CAAC;gBACF,IAAI,CAAC,IAAI,CAAC,GAAG,CAAC,CAAC;aAChB;YACD,OAAO,4BAAI,GAAG,EAAE,OAAO,GAAG,CAAC;gBACzB,4BAAI,KAAK,EAAC,KAAK,EAAC,SAAS,EAAE,MAAM,CAAC,WAAW,IAC1C,OAAO,GAAG,CAAC,GAAG,IAAI,GAAG,IAAI,CAAC,YAAY,EAAE,CAAC,KAAK,CAAC,CAAC,EAAE,EAAE,CAAC,CACnD;gBACJ,IAAI,CACF,CAAC;QACR,CAAC,CAAC,CACI,CACF,CACT,CAAC;AAEJ,CAAC"}
\ No newline at end of file
+{"version":3,"file":"Frame.js","sourceRoot":"","sources":["../src/Frame.tsx"],"names":[],"mappings":"AAAA,OAAO,KAAK,MAAM,OAAO,CAAC;AAC1B,OAAO,EAAE,MAAM,YAAY,CAAC;AAG5B,OAAO,EAAE,cAAc,EAAE,YAAY,EAAE,MAAM,SAAS,CAAC;AACvD,OAAO,EAAE,OAAO,EAAE,MAAM,OAAO,CAAC;AAEhC,MAAM,gBAAgB,GAAG,CAAC,KAAK,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,EAAE,KAAK,CAAC,CAAC;AAC3E,MAAM,YAAY,GAAG,CAAC,CAAC;AAuBvB,MAAM,UAAU,aAAa,CAAC,KAAyB;IAErD,MAAM,IAAI,GAAG,KAAK,CAAC,SAAS,IAAI,gBAAgB,CAAC;IACjD,MAAM,UAAU,GAAG,OAAO,KAAK,CAAC,UAAU,KAAK,QAAQ,CAAC,CAAC;QACvD,IAAI,CAAC,OAAO,CAAC,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC;QAChC,KAAK,CAAC,UAAU,IAAI,CAAC,CAAC;IAExB,MAAM,MAAM,GAAG,OAAO,CAAC,GAAG,EAAE;QAC1B,IAAI,CAAC,GAAG,EAA6B,CAAC;QACtC,KAAK,IAAI,CAAC,CAAC,EAAE,CAAC,CAAC,IAAI,MAAM,CAAC,OAAO,CAAC,KAAK,CAAC,UAAU,IAAI,EAAE,CAAC,EAAE;YACzD,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,GAAG,GAAG,GAAG,CAAC,CAAC;SACrB;QACD,OAAO,CAAC,CAAC;IACX,CAAC,EAAE,EAAE,CAAC,CAAC;IAEP,MAAM,KAAK,GAAG,OAAO,CAAC,GAAG,EAAE;QACzB,IAAI,CAAC,GAAG,EAAY,CAAC;QACrB,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,KAAK,CAAC,KAAK,IAAI,YAAY,CAAC,EAAE,CAAC,EAAE,EAAE;YACtD,IAAI,IAAI,GAAG,IAAI,IAAI,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC;YACjC,IAAI,CAAC,OAAO,CAAC,IAAI,CAAC,OAAO,EAAE,GAAG,IAAI,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;YAC/C,KAAK,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC;SAClB;QACD,OAAO,CAAC,CAAC;IACX,CAAC,EAAE,CAAC,KAAK,CAAC,KAAK,EAAE,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC;IAC/B,MAAM,aAAa,GAAG,KAAK,CAAC,aAAa,IAAI,EAAE,CAAC;IAEhD,OAAO,CACL,+BAAO,SAAS,EAAE,MAAM,CAAC,KAAK;QAC5B;YACE,gCACG,CAAC,KAAK,CAAC,KAAK,EAAE,GAAG,IAAI,CAAC,CAAC,GAAG,CAAC,CAAC,GAAG,EAAE,CAAC,EAAE,EAAE;gBACrC,OAAO,4BAAI,KAAK,EAAC,QAAQ,EAAC,GAAG,EAAE,GAAG,EAAE,SAAS,EAAE,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC,MAAM,CAAC,WAAW,IACvE,GAAG,CACD,CAAC;YACR,CAAC,CAAC,CACC,CACC;QACR,mCACG,KAAK,CAAC,GAAG,CAAC,CAAC,IAAI,EAAE,CAAC,EAAE,EAAE;YACrB,IAAI,IAAI,GAAG,EAAE,CAAC;YACd,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,EAAE,CAAC,EAAE,EAAE;gBAC1B,IAAI,IAAI,GAAG,IAAI,IAAI,CAAC,IAAI,IAAI,CAAC,IAAI,CAAC,CAAC,OAAO,CAAC,IAAI,CAAC,OAAO,EAAE,GAAG,CAAC,GAAG,UAAU,CAAC,CAAC,CAAC;gBAC7E,IAAI,SAAS,GAAG,YAAY,CAAC,IAAI,CAAC,CAAC;gBACnC,IAAI,KAAK,GAAG,YAAY,CAAC,IAAI,CAAC,GAAG,EAAE,CAAC,KAAK,SAAS,CAAC;gBACnD,IAAI,GAAG,GAAG,CACR,4BAAI,EAAE,EAAE,SAAS,CAAC,QAAQ,EAAE,EAAE,GAAG,EAAE,SAAS,CAAC,QAAQ,EAAE,EAAE,SAAS,EAAE,EAAE,CAAC,MAAM,CAAC,IAAI,EAAE;wBAClF,CAAC,MAAM,CAAC,KAAK,IAAI,EAAE,CAAC,EAAE,KAAK,CAAC,gBAAgB,KAAK,KAAK,IAAI,KAAK;qBAChE,CAAC;oBACA,iCACG,KAAK,CAAC,MAAM,CAAC,SAAS,CAAC,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC,KAAK,CAAC,MAAM,CAAC,SAAS,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,aAAa,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC;wBACvG,KAAK,CAAC,MAAM,CAAC,SAAS,CAAC;6BACpB,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE;4BACb,IAAI,CAAC,CAAC,KAAK,CAAC,QAAQ,EAAE,KAAK,CAAC,CAAC,KAAK,CAAC,QAAQ,EAAE;gCAAE,OAAO,CAAC,CAAC,KAAK,CAAC,QAAQ,EAAE,GAAG,CAAC,CAAC,KAAK,CAAC,QAAQ,EAAE,CAAC;;gCACzF,OAAO,CAAC,CAAC,KAAK,CAAC,UAAU,EAAE,GAAG,CAAC,CAAC,KAAK,CAAC,UAAU,EAAE,CAAC;wBAC1D,CAAC,CAAC;6BACD,GAAG,CAAC,CAAC,KAAK,EAAE,CAAC,EAAE,EAAE;4BAChB,OAAO,CACL,6BAAK,SAAS,EAAE,MAAM,CAAC,KAAK,EAAE,GAAG,EAAE,CAAC,SAAS,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC,EAAE,KAAK,EAAE,aAAa,CAAC,KAAK,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,EAAE,CAAC,CAAC,CAAC;oCACpG,OAAO,EAAE,MAAM;iCAChB;gCACC,6BAAK,SAAS,EAAE,MAAM,CAAC,WAAW;oCAChC,4BAAI,SAAS,EAAE,MAAM,CAAC,SAAS;wCAC7B,8BAAM,SAAS,EAAE,MAAM,CAAC,MAAM,EAAE,KAAK,EAAE;gDACrC,KAAK,EAAE,KAAK,CAAC,KAAK;6CACnB,aAAU;wCACX,8BAAM,SAAS,EAAC,SAAS,GAAoB;wCAC5C,KAAK,CAAC,aAAa,CAAC,CAAC;4CACpB,2BAAG,SAAS,EAAE,MAAM,CAAC,UAAU,EAAE,IAAI,EAAE,KAAK,CAAC,aAAa,IACvD,KAAK,CAAC,KAAK,CACV,CAAC,CAAC;4CACN,KAAK,CAAC,KAAK,CAEV,CACD;gCACL;oCACC;wCACG,cAAc,CAAC,KAAK,CAAC,KAAK,CAAC;wCAC3B,GAAG;wCACH,KAAK,CAAC,GAAG,CAAC,CAAC;4CACV,2BAAG,IAAI,EAAE,KAAK,CAAC,GAAG,EAAE,GAAG,EAAC,qBAAqB,EAAC,MAAM,EAAC,QAAQ,IAC1D,KAAK,CAAC,QAAQ,CACb;4CACJ,CAAC,CAAC,KAAK,CAAC,QAAQ;wCACjB,IAAI;wCACJ,KAAK,CAAC,WAAW,IAAI,IAAI,CACvB,CACD,CACF,CACP,CAAC;wBACJ,CAAC,CAAC,CAAC,CAAC;wBACN,6BAAK,SAAS,EAAE,MAAM,CAAC,UAAU,IAC9B,IAAI,CAAC,OAAO,EAAE,CACX,CACJ,CACH,CACN,CAAC;gBACF,IAAI,CAAC,IAAI,CAAC,GAAG,CAAC,CAAC;aAChB;YACD,OAAO,4BAAI,GAAG,EAAE,OAAO,GAAG,CAAC;gBACzB,4BAAI,KAAK,EAAC,KAAK,EAAC,SAAS,EAAE,MAAM,CAAC,WAAW,IAC1C,OAAO,GAAG,CAAC,GAAG,IAAI,GAAG,IAAI,CAAC,YAAY,EAAE,CAAC,KAAK,CAAC,CAAC,EAAE,EAAE,CAAC,CACnD;gBACJ,IAAI,CACF,CAAC;QACR,CAAC,CAAC,CACI,CACF,CACT,CAAC;AAEJ,CAAC"}
\ No newline at end of file
diff --git a/lib/Key.d.ts.map b/lib/Key.d.ts.map
index 95e68d5..b62e09a 100644
--- a/lib/Key.d.ts.map
+++ b/lib/Key.d.ts.map
@@ -1 +1 @@
-{"version":3,"file":"Key.d.ts","sourceRoot":"","sources":["../src/Key.tsx"],"names":[],"mappings":"AAIA,MAAM,WAAW,gBAAgB;IAC/B,UAAU,CAAC,EAAE;QACX,CAAC,GAAG,EAAE,MAAM,GAAG,MAAM,CAAA;KACtB,CAAA;IACD,UAAU,EAAE;QACV,CAAC,KAAK,EAAE,MAAM,GAAG,MAAM,CAAA;KACxB,CAAA;IACD,mBAAmB,EAAE,CAAC,KAAK,EAAE,MAAM,KAAK,IAAI,CAAA;IAC5C,aAAa,EAAE;QACb,CAAC,KAAK,EAAE,MAAM,GAAG,OAAO,CAAA;KACzB,CAAA;CACF;AAED,wBAAgB,WAAW,CAAC,KAAK,EAAE,gBAAgB,eAmClD"}
\ No newline at end of file
+{"version":3,"file":"Key.d.ts","sourceRoot":"","sources":["../src/Key.tsx"],"names":[],"mappings":"AAGA,MAAM,WAAW,gBAAgB;IAC/B,UAAU,CAAC,EAAE;QACX,CAAC,GAAG,EAAE,MAAM,GAAG,MAAM,CAAA;KACtB,CAAA;IACD,UAAU,EAAE;QACV,CAAC,KAAK,EAAE,MAAM,GAAG,MAAM,CAAA;KACxB,CAAA;IACD,mBAAmB,EAAE,CAAC,KAAK,EAAE,MAAM,KAAK,IAAI,CAAA;IAC5C,aAAa,EAAE;QACb,CAAC,KAAK,EAAE,MAAM,GAAG,OAAO,CAAA;KACzB,CAAA;CACF;AAED,wBAAgB,WAAW,CAAC,KAAK,EAAE,gBAAgB,eAmClD"}
\ No newline at end of file
diff --git a/lib/Key.js b/lib/Key.js
index 3709ee6..5b72c29 100644
--- a/lib/Key.js
+++ b/lib/Key.js
@@ -1,11 +1,10 @@
 import React from 'react';
 import { useMemo } from 'react';
-const defaultStyles = require('./css/key.module.css');
 export function CalendarKey(props) {
     const styles = useMemo(() => {
-        let s = Object.assign({}, defaultStyles);
+        let s = {};
         for (let [k, v] of Object.entries(props.classNames || {})) {
-            s[k] += ' ' + v;
+            s[k] += k + ' ' + v;
         }
         return s;
     }, []);
diff --git a/lib/Key.js.map b/lib/Key.js.map
index b4cfd78..f02c7b2 100644
--- a/lib/Key.js.map
+++ b/lib/Key.js.map
@@ -1 +1 @@
-{"version":3,"file":"Key.js","sourceRoot":"","sources":["../src/Key.tsx"],"names":[],"mappings":"AAAA,OAAO,KAAK,MAAM,OAAO,CAAC;AAC1B,OAAO,EAAE,OAAO,EAAE,MAAM,OAAO,CAAC;AAChC,MAAM,aAAa,GAAG,OAAO,CAAC,sBAAsB,CAAC,CAAC;AAetD,MAAM,UAAU,WAAW,CAAC,KAAuB;IAEjD,MAAM,MAAM,GAAG,OAAO,CAAC,GAAG,EAAE;QAC1B,IAAI,CAAC,GAAG,MAAM,CAAC,MAAM,CAAC,EAAE,EAAE,aAAa,CAAC,CAAC;QACzC,KAAK,IAAI,CAAC,CAAC,EAAE,CAAC,CAAC,IAAI,MAAM,CAAC,OAAO,CAAC,KAAK,CAAC,UAAU,IAAI,EAAE,CAAC,EAAE;YACzD,CAAC,CAAC,CAAC,CAAC,IAAI,GAAG,GAAG,CAAC,CAAC;SACjB;QACD,OAAO,CAAC,CAAC;IACX,CAAC,EAAE,EAAE,CAAC,CAAC;IAEP,MAAM,aAAa,GAAG,KAAK,CAAC,aAAa,IAAI,EAAE,CAAC;IAEhD,IAAI,MAAM,GAAG,MAAM,CAAC,OAAO,CAAC,KAAK,CAAC,UAAU,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE;QAC1D,IAAI,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;YAAE,OAAO,CAAC,CAAC,CAAC;aACtB,IAAI,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;YAAE,OAAO,CAAC,CAAC;;YAC1B,OAAO,CAAC,CAAC;IAChB,CAAC,CAAC,CAAC;IAEH,OAAO,CACL,6BAAK,SAAS,EAAE,MAAM,CAAC,GAAG,IACvB,MAAM,CAAC,GAAG,CAAC,CAAC,CAAC,KAAK,EAAE,YAAY,CAAC,EAAE,CAAC,EAAE,EAAE;QACvC,OAAO,6BAAK,SAAS,EAAE,MAAM,CAAC,GAAG,EAAE,GAAG,EAAE,CAAC,YAAY,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC;YACjE,8BAAM,SAAS,EAAE,MAAM,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,EAAE,CAAC,KAAK,CAAC,mBAAmB,CAAC,KAAK,CAAC,EAAE,KAAK,EAAE,EAAE,KAAK,EAAE,IAC9F,aAAa,CAAC,KAAK,CAAC,CAAC,CAAC;gBACrB,QAAQ,CAAC,CAAC;gBACV,QAAQ,CAEL;YACP,gCACG,SAAS,GAAG,YAAY,CACtB,CACD,CAAC;IACT,CAAC,CAAC,CACE,CACP,CAAC;AACJ,CAAC"}
\ No newline at end of file
+{"version":3,"file":"Key.js","sourceRoot":"","sources":["../src/Key.tsx"],"names":[],"mappings":"AAAA,OAAO,KAAK,MAAM,OAAO,CAAC;AAC1B,OAAO,EAAE,OAAO,EAAE,MAAM,OAAO,CAAC;AAehC,MAAM,UAAU,WAAW,CAAC,KAAuB;IAEjD,MAAM,MAAM,GAAG,OAAO,CAAC,GAAG,EAAE;QAC1B,IAAI,CAAC,GAAG,EAA6B,CAAC;QACtC,KAAK,IAAI,CAAC,CAAC,EAAE,CAAC,CAAC,IAAI,MAAM,CAAC,OAAO,CAAC,KAAK,CAAC,UAAU,IAAI,EAAE,CAAC,EAAE;YACzD,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,GAAG,GAAG,GAAG,CAAC,CAAC;SACrB;QACD,OAAO,CAAC,CAAC;IACX,CAAC,EAAE,EAAE,CAAC,CAAC;IAEP,MAAM,aAAa,GAAG,KAAK,CAAC,aAAa,IAAI,EAAE,CAAC;IAEhD,IAAI,MAAM,GAAG,MAAM,CAAC,OAAO,CAAC,KAAK,CAAC,UAAU,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,EAAE,CAAC,EAAE,EAAE;QAC1D,IAAI,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;YAAE,OAAO,CAAC,CAAC,CAAC;aACtB,IAAI,CAAC,CAAC,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC,CAAC;YAAE,OAAO,CAAC,CAAC;;YAC1B,OAAO,CAAC,CAAC;IAChB,CAAC,CAAC,CAAC;IAEH,OAAO,CACL,6BAAK,SAAS,EAAE,MAAM,CAAC,GAAG,IACvB,MAAM,CAAC,GAAG,CAAC,CAAC,CAAC,KAAK,EAAE,YAAY,CAAC,EAAE,CAAC,EAAE,EAAE;QACvC,OAAO,6BAAK,SAAS,EAAE,MAAM,CAAC,GAAG,EAAE,GAAG,EAAE,CAAC,YAAY,EAAE,CAAC,CAAC,CAAC,IAAI,CAAC,GAAG,CAAC;YACjE,8BAAM,SAAS,EAAE,MAAM,CAAC,MAAM,EAAE,OAAO,EAAE,GAAG,EAAE,CAAC,KAAK,CAAC,mBAAmB,CAAC,KAAK,CAAC,EAAE,KAAK,EAAE,EAAE,KAAK,EAAE,IAC9F,aAAa,CAAC,KAAK,CAAC,CAAC,CAAC;gBACrB,QAAQ,CAAC,CAAC;gBACV,QAAQ,CAEL;YACP,gCACG,SAAS,GAAG,YAAY,CACtB,CACD,CAAC;IACT,CAAC,CAAC,CACE,CACP,CAAC;AACJ,CAAC"}
\ No newline at end of file
diff --git a/lib/css/frame.module.css b/lib/css/frame.module.css
deleted file mode 100644
index e69de29..0000000
diff --git a/lib/css/key.module.css b/lib/css/key.module.css
deleted file mode 100644
index e69de29..0000000
diff --git a/src/Frame.tsx b/src/Frame.tsx
index 45724e9..72eec9a 100644
--- a/src/Frame.tsx
+++ b/src/Frame.tsx
@@ -4,7 +4,6 @@ import cx from 'classnames';
 import { CalendarEvent } from './Event';
 import { getDisplayTime, getEventDate } from './utils';
 import { useMemo } from 'react';
-const defaultStyles = require('./css/frame.module.css');
 
 const defaultDayLabels = ['MON', 'TUE', 'WED', 'THU', 'FRI', 'SAT', 'SUN'];
 const defaultWeeks = 4;
@@ -38,9 +37,9 @@ export function CalendarFrame(props: CalendarFrameProps) {
     props.startIndex || 0;
     
   const styles = useMemo(() => {
-    let s = Object.assign({}, defaultStyles);
+    let s = {} as {[key: string]: string};
     for (let [k, v] of Object.entries(props.classNames || {})) {
-      s[k] += ' ' + v;
+      s[k] += k + ' ' + v;
     }
     return s;
   }, []);
diff --git a/src/Key.tsx b/src/Key.tsx
index e8f07c4..75390a7 100644
--- a/src/Key.tsx
+++ b/src/Key.tsx
@@ -1,6 +1,5 @@
 import React from 'react';
 import { useMemo } from 'react';
-const defaultStyles = require('./css/key.module.css');
 
 export interface CalendarKeyProps {
   classNames?: {
@@ -18,9 +17,9 @@ export interface CalendarKeyProps {
 export function CalendarKey(props: CalendarKeyProps) {
     
   const styles = useMemo(() => {
-    let s = Object.assign({}, defaultStyles);
+    let s = {} as {[key: string]: string};
     for (let [k, v] of Object.entries(props.classNames || {})) {
-      s[k] += ' ' + v;
+      s[k] += k + ' ' + v;
     }
     return s;
   }, []);
diff --git a/src/css/frame.module.css b/src/css/frame.module.css
deleted file mode 100644
index e69de29..0000000
diff --git a/src/css/key.module.css b/src/css/key.module.css
deleted file mode 100644
index e69de29..0000000